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Recent Content by soumya

  1. soumya
    Post

    OpenScaler Open Source High Quality Up-sampling for RPi 4

    [RESERVED]
    Post by: soumya, Jan 8, 2024 in forum: Computer Audiophile: Software, Configs, Tools
  2. soumya
    Post

    OpenScaler Open Source High Quality Up-sampling for RPi 4

    [RESERVED]
    Post by: soumya, Jan 8, 2024 in forum: Computer Audiophile: Software, Configs, Tools
  3. soumya
    Thread

    OpenScaler Open Source High Quality Up-sampling for RPi 4

    Got some spare time last month - so wanted to finish the long pending activity. This is the first draft of OpenScaler - an open source Linux based...
    Thread by: soumya, Jan 7, 2024, 3 replies, in forum: Computer Audiophile: Software, Configs, Tools
  4. soumya
    Post

    FIR filter trilemma with limited tap length

    I am somewhat sceptical - actually pretty sure these are not impulse response graphs for any Linear Phase FIR filter. Any LP filter that is has...
    Post by: soumya, Dec 30, 2023 in forum: Audio Science
  5. soumya
    Post

    FIR filter trilemma with limited tap length

    Delta Sigma DACs reach the needed MHz sampling rates in 2 broad stages - 8x or more interpolation using FIR. Followed by 16x or more ZoH followed...
    Post by: soumya, Dec 28, 2023 in forum: Audio Science
  6. soumya
    Thread

    Some good blogs by Richard Murison

    Usually avoid PS Audio blogs by Paul as they are vague at best and inaccurate at worst. But the ones from Richard Murison are very insightful....
    Thread by: soumya, Dec 28, 2023, 0 replies, in forum: Audio Science
  7. soumya
    Post

    Topping and SMSL with ASR Punking Us on DACs?

    I visit ASR - particularly DAC reviews once in a few moons for sheer entertainment. Is it a case of cult or Pied-piper and the mice, I don't...
    Post by: soumya, Oct 26, 2022 in forum: Digital: DACs, USB converters, decrapifiers
  8. soumya
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    NOS Filter in ESS DACs

    @Vtory So I checked with X-18 and X-16 today and concur with your findings. Oddly enough, the other ESS Sabre based DACs I tried don't make the...
    Post by: soumya, Jun 7, 2022 in forum: Computer Audiophile: Software, Configs, Tools
  9. soumya
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    NOS Filter in ESS DACs

    ESS (and AKM) 8 Fs interpolation stage is applicable only for sampling rates up to 192 kHz ; so the interpolation bandwidth is capped at 1.536...
    Post by: soumya, Jun 6, 2022 in forum: Computer Audiophile: Software, Configs, Tools
  10. soumya
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    NOS Filter in ESS DACs

    Thanks for trying out the settings @purr1n ! Couple of things about ESS / AKM : While it's true like any other D-S DAC, the final Fs that goes...
    Post by: soumya, Jun 5, 2022 in forum: Computer Audiophile: Software, Configs, Tools
  11. soumya
    Post

    NOS Filter in ESS DACs

    This can be applied to any oversampling DAC for so long the DAC has allows bypassing its internal interpolation filter beyond a certain input Fs....
    Post by: soumya, Jun 5, 2022 in forum: Computer Audiophile: Software, Configs, Tools
  12. soumya
    Thread

    NOS Filter in ESS DACs

    One of the things I like about AKM DAC chips is the presence of a NOS-like filter. AKM calls it super-slow roll off filter. DAC implementations...
    Thread by: soumya, Jun 5, 2022, 13 replies, in forum: Computer Audiophile: Software, Configs, Tools